Takeoffs that could not be located:

• Unknown takeoff — no linkable takeoff on flightlog.org (11 flights)
• Valle de Bravo, El Peñon — outside the curated takeoff dataset (8 flights)
• Kråkemonuten, Vågsli — no usable coordinates recorded on flightlog.org (1 flight)
• Bøkstulnatten, Lifjell, Bø — no usable coordinates recorded on flightlog.org (1 flight)
• Haukelifjell skisenter — no usable coordinates recorded on flightlog.org (1 flight)
• Fanas-Schiers — outside the curated takeoff dataset (2 flights)
• Grindelwald — outside the curated takeoff dataset (1 flight)
• Grindelwald, First — outside the curated takeoff dataset (1 flight)
• Pizzo Gallinaro, Palazzo Adriano, Sicily — outside the curated takeoff dataset (1 flight)
• Madonna del Alto, Sicily — outside the curated takeoff dataset (1 flight)
• Bolognetta, Sicily — outside the curated takeoff dataset (1 flight)
• Monte Inici, Sicily — outside the curated takeoff dataset (1 flight)
• Pollina, Palermo, Sicily — outside the curated takeoff dataset (2 flights)
• Sicilia, Palermo-Ciaculli. — outside the curated takeoff dataset (2 flights)
• Sicilia, Il Monte, West of Cefalù — outside the curated takeoff dataset (1 flight)
• Poggio Bustone, north. — outside the curated takeoff dataset (5 flights)
• Mühlbach (Rio Molino), Gais — outside the curated takeoff dataset (2 flights)
• Ahornach (Acereto), Campo Tures — outside the curated takeoff dataset (2 flights)
• Schwandfeldspitz - Adelboden — outside the curated takeoff dataset (2 flights)
• Interlaken, Amisbüel — outside the curated takeoff dataset (1 flight)
• Salamanca, Piedrahita, Peña Negra. — outside the curated takeoff dataset (6 flights)
• Ailigas, Karigasniemi — outside the curated takeoff dataset (1 flight)
• Løkken, Nørre Lyngby — outside the curated takeoff dataset (1 flight)
• Col de Bleyne — outside the curated takeoff dataset (3 flights)
• Gréolières, Mt. Cheiron — outside the curated takeoff dataset (1 flight)